cat ~/.ssh/id_rsa.pub 2>/dev/null || cat ~/.ssh/id_ed25519.pub 2>/dev/null

ssh -o ConnectTimeout=5 -o BatchMode=yes $SSH_TARGET "echo ok" 2>/dev/null

sshpass -p '<PASSWORD>' ssh -o StrictHostKeyChecking=no $SSH_TARGET \
  "mkdir -p ~/.ssh && chmod 700 ~/.ssh && echo '<PUBLIC_KEY>' >> ~/.ssh/authorized_keys && chmod 600 ~/.ssh/authorized_keys"

ssh -o ConnectTimeout=5 $SSH_TARGET "echo '免密登录成功' && uname -a"

ssh $SSH_TARGET "echo '=== 系统 ===' && cat /etc/os-release | grep PRETTY_NAME && uname -m && echo '=== CPU ===' && nproc && echo '=== 内存 ===' && free -h && echo '=== 磁盘 ===' && df -h / && echo '=== 包管理器 ===' && which apt yum dnf pacman 2>/dev/null && echo '=== Node.js ===' && node -v 2>/dev/null || echo '未安装' && echo '=== Python ===' && python3 --version 2>/dev/null || echo '未安装' && echo '=== Rust ===' && rustc --version 2>/dev/null || echo '未安装' && echo '=== Go ===' && go version 2>/dev/null || echo '未安装' && echo '=== Docker ===' && docker --version 2>/dev/null || echo '未安装' && echo '=== Nginx ===' && nginx -v 2>&1 || echo '未安装'"

# 安装 Node.js 20（如未安装）
ssh $SSH_TARGET "curl -fsSL https://deb.nodesource.com/setup_20.x | bash - && apt-get install -y nodejs"
# 安装 PM2
ssh $SSH_TARGET "npm install -g pm2"

# 安装 Python3 + pip + venv（如未安装）
ssh $SSH_TARGET "apt-get install -y python3 python3-pip python3-venv"

ssh $SSH_TARGET "curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y && source ~/.cargo/env"

# 本地编译（需安装对应 target）
rustup target add x86_64-unknown-linux-gnu  # 或 aarch64-unknown-linux-gnu
cargo build --release --target x86_64-unknown-linux-gnu
# 仅上传编译产物

ssh $SSH_TARGET "wget -q https://go.dev/dl/go1.22.0.linux-amd64.tar.gz && tar -C /usr/local -xzf go1.22.0.linux-amd64.tar.gz && echo 'export PATH=\$PATH:/usr/local/go/bin' >> ~/.bashrc"

GOOS=linux GOARCH=amd64 go build -o $PROJECT_NAME .
# 仅上传二进制文件

# 安装 Docker（如未安装）
ssh $SSH_TARGET "curl -fsSL https://get.docker.com | sh && systemctl enable docker && systemctl start docker"

ssh $SSH_TARGET "apt-get install -y nginx && systemctl enable nginx && systemctl start nginx"

rsync -avz --timeout=300 \
  -e "ssh -o ServerAliveInterval=30 -o ServerAliveCountMax=10" \
  --exclude='.git' --exclude='<TYPE_SPECIFIC_EXCLUDES>' \
  $PROJECT_DIR/ $SSH_TARGET:$REMOTE_DIR/

ssh $SSH_TARGET "sed -i 's/#ClientAliveInterval.*/ClientAliveInterval 60/' /etc/ssh/sshd_config && sed -i 's/#ClientAliveCountMax.*/ClientAliveCountMax 120/' /etc/ssh/sshd_config && systemctl reload ssh || systemctl reload sshd"

ssh $SSH_TARGET "cd $REMOTE_DIR && pm2 start npm --name $PROJECT_NAME -- start && pm2 startup && pm2 save"

ssh $SSH_TARGET "cat > /etc/systemd/system/$PROJECT_NAME.service << EOF
[Unit]
Description=$PROJECT_NAME
After=network.target

[Service]
Type=simple
User=root
WorkingDirectory=$REMOTE_DIR
ExecStart=$REMOTE_DIR/.venv/bin/python -m uvicorn main:app --host 0.0.0.0 --port $PORT
# 或 gunicorn: ExecStart=$REMOTE_DIR/.venv/bin/gunicorn -w 4 -b 0.0.0.0:$PORT main:app
Restart=on-failure
RestartSec=5
Environment=PYTHONUNBUFFERED=1

[Install]
WantedBy=multi-user.target
EOF
systemctl daemon-reload && systemctl enable $PROJECT_NAME && systemctl start $PROJECT_NAME"

ssh $SSH_TARGET "cat > /etc/systemd/system/$PROJECT_NAME.service << EOF
[Unit]
Description=$PROJECT_NAME
After=network.target

[Service]
Type=simple
User=root
WorkingDirectory=$REMOTE_DIR
ExecStart=$REMOTE_DIR/$BINARY_NAME
Restart=on-failure
RestartSec=5
Environment=PORT=$PORT

[Install]
WantedBy=multi-user.target
EOF
systemctl daemon-reload && systemctl enable $PROJECT_NAME && systemctl start $PROJECT_NAME"

ssh $SSH_TARGET "cd $REMOTE_DIR && docker compose up -d"

ssh $SSH_TARGET "cat > /etc/nginx/sites-available/$PROJECT_NAME << 'NGINX'
server {
    listen 80;
    server_name $DOMAIN www.$DOMAIN;

    client_max_body_size 50M;

    location / {
        proxy_pass http://127.0.0.1:$PORT;
        proxy_http_version 1.1;
        proxy_set_header Host \$host;
        proxy_set_header X-Real-IP \$remote_addr;
        proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto \$scheme;
        proxy_set_header Upgrade \$http_upgrade;
        proxy_set_header Connection \"upgrade\";
    }
}
NGINX
ln -sf /etc/nginx/sites-available/$PROJECT_NAME /etc/nginx/sites-enabled/$PROJECT_NAME
rm -f /etc/nginx/sites-enabled/default
nginx -t && systemctl reload nginx"

ssh $SSH_TARGET "cat > /etc/nginx/sites-available/$PROJECT_NAME << 'NGINX'
server {
    listen 80;
    server_name $DOMAIN www.$DOMAIN;

    root $REMOTE_DIR;
    index index.html;

    location / {
        try_files \$uri \$uri/ /index.html;
    }

    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2)$ {
        expires 30d;
        add_header Cache-Control \"public, immutable\";
    }
}
NGINX
ln -sf /etc/nginx/sites-available/$PROJECT_NAME /etc/nginx/sites-enabled/$PROJECT_NAME
rm -f /etc/nginx/sites-enabled/default
nginx -t && systemctl reload nginx"

server {
    listen 443 ssl;
    server_name $DOMAIN www.$DOMAIN;

    ssl_certificate /etc/ssl/cloudflare/fullchain.pem;
    ssl_certificate_key /etc/ssl/cloudflare/key.pem;

    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-XSS-Protection "1; mode=block" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;

    # ... location 块同上 ...
}

ssh $SSH_TARGET "sed -i 's/# server_tokens off;/server_tokens off;/' /etc/nginx/nginx.conf && nginx -t && systemctl reload nginx"

ssh $SSH_TARGET "mkdir -p /etc/ssl/cloudflare"
# 写入 cert.pem 和 key.pem（chmod 600）
# 下载 Origin CA 根证书并拼接
ssh $SSH_TARGET "curl -s -o /etc/ssl/cloudflare/origin-ca-rsa-root.pem https://developers.cloudflare.com/ssl/static/origin_ca_rsa_root.pem && cat /etc/ssl/cloudflare/cert.pem /etc/ssl/cloudflare/origin-ca-rsa-root.pem > /etc/ssl/cloudflare/fullchain.pem"

ssh $SSH_TARGET "openssl x509 -in /etc/ssl/cloudflare/cert.pem -noout -text | grep -E 'DNS:|Subject:|Issuer:|Extended'"

ssh $SSH_TARGET "apt-get install -y certbot python3-certbot-nginx && certbot --nginx -d $DOMAIN -d www.$DOMAIN --non-interactive --agree-tos --email <EMAIL>"